What’s Vulnerable › Vulnerabilities

CVE-2019-6811

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-17 · updated 2026-06-17
• Weakness: CWE-754

Description

An Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmented packet with a length greater than 65535 bytes. The module then requires a power cycle to recover.

Affected products

• Schneider-Electric Modicon Quantum 140Noe77101 Firmware: through 6.9
• Schneider-Electric Modicon Quantum 140Noe77111 Firmware: through 6.9

References

• https://www.schneider-electric.com/en/download/document/SEVD-2019-253-02/
• https://www.schneider-electric.com/en/download/document/SEVD-2019-253-02/

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